x-number :

JsDK of Number Class

Install :

npm install x-number --save;

Features :

1. isEven :

    var n=122;
    n.isEven(); // true
    (n+1).isEven(); //false

2. isOdd :

    var n=123;
    n.isOdd(); // true
    (n+1).isOdd(); //false

3. .. :

Make a range of numbers and out as Array :

   (1)['..'](10);
    // [1,2,3,4,5,6,7,8,9,10]
    (3)['..'](5);
    // [3,4,5]
    (10)['..'](120,30) // increment by 30
    // [40,70,100]

4. toRoman :

var n=4;
n.toRoman();
//-- IV
(61).toRoman();
//--  LXI
 

5. fromRoman (static):

Number.fromRoman('XXIII');
  // 23